智能化小区安全系统设计（毕业论文）.docVIP

摘 要 论文主要探讨了与人们日常生活联系密切的智能小区安防系统的设计问题，设计具有防盗，防火和防煤气泄漏，室温检测，万年历等功能为一体的智能化小区安全报警系统，具有用按键调节时间和取消报警的效果。该智能小区安全系统采用了体积小，功能强大，价格便宜的STC89C52单片机作为控制芯片。与单片机相连接的各种用于家庭安保的传感器用于家庭报警，收集各种报警信号，并送单片机进行初步处理。主要包括MQ2气体烟雾传感器、红外光电开关和DS18B20温度传感器，通过LCD液晶显示当前时间及温度，通过蜂鸣器和发光二极管对不同危险信号报警。 由于红外线是不可见光，有很强的隐蔽性和必威体育官网网址性，因此在防盗、警戒等安保装置中得到了广泛的应用。可燃气体泄漏报警器适用于各种可燃气体（液化气、天然气）泄漏探测报警，既可独立工作，也可方便地配合防盗报警器使用。 以DS18B20温度传感器，红外光电开关，MQ2烟雾传感器为主要器件设计的智能化小区安全系统具有使用方便、成本低廉、线路简单、软件设计简单等优点，在实际的工程中，有广泛的应用。因而，在小区住户中具有良好的应用前景和推广价值。 关键词：STC89C52；报警系统；气体传感器；红外传感器 ABSTRACT Paper mainly discusses closely linked with peoples daily lives intelligent residential security system design issues, design with anti-theft, fire and gas leak detection ,room temperature detection, calendar and other functions as one of the intelligent residential security alarm system with adjustable time with key and cancel the alarm effect. The intelligent residential security system uses a small, powerful, inexpensive STC89C52 SCM control chip. Connected with the microcontroller various sensor for home security alarm , collect all kinds of alarm signals, and send microcontroller for initial treatment. Including MQ2 Gas smoke sensors, infrared photoelectric switches and DS18B20 temperature sensor, the LCD displays the current time and temperature, through the buzzer and LEDs alarm of different danger signals . Because infrared is not visible, there is a strong concealment and secrecy, therefore security, security guard and other devices have been widely used. Combustible gas leakage alarm for a variety of combustible gases (liquefied,natural gas) leak detection alarm, can work independently, and can be easily used with the anti-theft alarm. DS18B20 temperature sensors, infrared photoelectric switches, MQ2 smoke sensors as the main plot device design intelligent safety system is easy to use, low cost, simple circuit, software design is simple, in the actual project, there is a wide range of applications. Thus, households in the district has a